The new EDAG "Light Car" is shown during the press day at the 79th Geneva International Motor Show, Tuesday, March 3, 2009, in Geneva, Switzerland. The Motor Show will open its gates to public from March 5 to 15, presenting over 1000 brands with more than 85 world and european firsts in the sector saloon alone. less

The new EDAG "Light Car" is shown during the press day at the 79th Geneva International Motor Show, Tuesday, March 3, 2009, in Geneva, Switzerland. The Motor Show will open its gates to public from March 5 to ... more

Photo: MARTIAL TREZZINI, AP

The new EDAG "Light Car" is shown during the press day at... Photo-1357011.47154 - SFGate

Toyota Motor Corp. President Akio Toyoda speaks about Toyota Fun-Vii in Tokyo Monday, Nov. 28, 2011. Toyoda unveiled the futuristic concept car resembling a giant smartphone to demonstrate how Japan's top automaker is trying to take the lead in technology at the upcoming Tokyo auto show, which opens to the public this weekend. (AP Photo/Koji Sasahara) less

The new Sbarro Hi-Tech car is shown during the press day at the Geneva International Motor Show in Geneva, Switzerland, Tuesday, March 6, 2012. The Motor Show will open its gates to the public from March 8 to 18, presenting more than 260 exhibitors and more than 180 world and European premieres. (AP Photo/Keystone, Martial Trezzini) (AP) less

The new Sbarro Hi-Tech car is shown during the press day at the Geneva International Motor Show in Geneva, Switzerland, Tuesday, March 6, 2012. The Motor Show will open its gates to the public from March 8 to ... more

The new Sbarro Hi-Tech car is shown during the press day at the... Photo-2614818.47154 - SFGate

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A Mercedes-Benz bionic concept vehicle lies on display during an innovation symposium at the Washington Convention Center June 7, 2005 in Washington, DC. The car was created after a study was done on the tropical boxfish. (Photo by Alex Wong/Getty Images)

A Mercedes-Benz bionic concept vehicle lies on display during an innovation symposium at the Washington Convention Center June 7, 2005 in Washington, DC. The car was created after a study was done on the

A model sits at the wheel of the Nissan NuVu electric concept car Oct. 3, 2008.

A model sits at the wheel of the Nissan NuVu electric concept car Oct. 3, 2008.

Photo: REMY DE LA MAUVINIERE, AP

A model sits at the wheel of the Nissan NuVu electric concept car... Photo-1422559.47154 - SFGate

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Jean-Noel Peysson, commercial director of French automaker Volteis, explains features of the V+ electric concept car, a collaboration between his company and designer Philippe Starck, on Monday, March 5, 2012, at the Geneva Motor Show in Geneva, Switzerland. (AP Photo/Frank Jordans) less

Jean-Noel Peysson, commercial director of French automaker Volteis, explains features of the V+ electric concept car, a collaboration between his company and designer Philippe Starck, on Monday, March 5, 2012, ... more

The Mazda Nagare concept car is displayed at the New York International Auto Show on Thursday in New York City.

The Mazda Nagare concept car is displayed at the New York International Auto Show on Thursday in New York City.

Photo: Mario Tama, Getty Images

The Mazda Nagare concept car is displayed at the New York... Photo-1520641.47154 - SFGate

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The new Sbarro Floper III car is shown during the press day at the Geneva International Motor Show in Geneva, Switzerland, Tuesday, March 6, 2012. The Motor Show will open its gates to the public from March 8 to 18, presenting more than 260 exhibitors and more than 180 world and European premieres. (AP Photo/Keystone, Martial Trezzini) (AP) less

The new Sbarro Floper III car is shown during the press day at the Geneva International Motor Show in Geneva, Switzerland, Tuesday, March 6, 2012. The Motor Show will open its gates to the public from March 8 ... more

The new Sbarro Floper III car is shown during the press day at the... Photo-2614820.47154 - SFGate

The new Sbarro Montbeliard Electrosport car is shown during the press day at the Geneva International Motor Show in Geneva, Switzerland, Tuesday, March 6, 2012. The Motor Show will open its gates to the public from March 8 to 18, presenting more than 260 exhibitors and more than 180 world and European premieres. (AP Photo/Keystone, Martial Trezzini) (AP) less

The new Sbarro Montbeliard Electrosport car is shown during the press day at the Geneva International Motor Show in Geneva, Switzerland, Tuesday, March 6, 2012. The Motor Show will open its gates to the public ... more

The new Sbarro Montbeliard Electrosport car is shown during the... Photo-2614819.47154 - SFGate

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The new Sbarro Montbeliard Charger car is shown during the press day at the Geneva International Motor Show in Geneva, Switzerland, Tuesday, March 6, 2012. The Motor Show will open its gates to the public from March 8 to 18, presenting more than 260 exhibitors and more than 180 world and European premieres. (AP Photo/Keystone, Martial Trezzini) (AP) less

The new Sbarro Montbeliard Charger car is shown during the press day at the Geneva International Motor Show in Geneva, Switzerland, Tuesday, March 6, 2012. The Motor Show will open its gates to the public from ... more

The new Sbarro Montbeliard Charger car is shown during the press... Photo-2614821.47154 - SFGate

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The Swiss new Sbarro Concept car TwoFort100 is shown during the press day at the 81st Geneva International Motor Show in Geneva, Switzerland, Tuesday, March 1, 2011.

The Swiss new Sbarro Concept car TwoFort100 is shown during the press day at the 81st Geneva International Motor Show in Geneva, Switzerland, Tuesday, March 1, 2011.

The new Swiss Sbarro Espera Montbeliard Buggy concept car is shown during the press day at the 79th Geneva International Motor Show, Tuesday, March 3, 2009, in Geneva, Switzerland. The Motor Show will open its gates to public from March 5 to 15, presenting over 1000 brands with more than 85 world and european firsts in the sector saloon alone. less

The new Swiss Sbarro Espera Montbeliard Buggy concept car is shown during the press day at the 79th Geneva International Motor Show, Tuesday, March 3, 2009, in Geneva, Switzerland. The Motor Show will open its ... more